13617911 has 2 divisors, whose sum is σ = 13617912. Its totient is φ = 13617910.

The previous prime is 13617881. The next prime is 13617913. The reversal of 13617911 is 11971631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13617911 - 2²² = 9423607 is a prime.

It is a Sophie Germain prime.

Together with 13617913, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13617913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6808955 + 6808956.

It is an arithmetic number, because the mean of its divisors is an integer number (6808956).

Almost surely, 2^13617911 is an apocalyptic number.

13617911 is a deficient number, since it is larger than the sum of its proper divisors (1).

13617911 is an equidigital number, since it uses as much as digits as its factorization.

13617911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134, while the sum is 29.

The square root of 13617911 is about 3690.2453847949. The cubic root of 13617911 is about 238.8013790724.

The spelling of 13617911 in words is "thirteen million, six hundred seventeen thousand, nine hundred eleven".